The Marcel Bloch MB.151 was a French single-seat, all-metal monoplane fighter developed just before the outbreak of World War II. It was the initial production version of the MB.150 series, featuring the Gnome-Rhône 14N-35 radial engine. While it was slightly underpowered compared to the later MB.152, the MB.151 was an essential component of the Armée de l’Air during the Battle of France. Its robust construction and stable flight characteristics made it a reliable defender against the Luftwaffe in the desperate air battles of 1940.